Leather-staking machine.



F F. SLOOOMB.

LEATHER STAKING MACHINE.

APPLICATION FILED JUNE 26, 1914.

1,1 30,769. Patented Mar. 9, 1915.

2 SHEETS-SHEET 1.

WITNESSES INVENTUR W 7' J17 fiA f /d ATTORNEYS THE NORRIS PETERS 60..PHoTc-LITHQ, WASHINGTON. D, C.

P. F. SLOUOMB. LEATHER STAKING MACHINE. APPLICATION FILED JUNE 26, 1914.1,1 30,769. Patented Mar. 9, 1915.-

2 SHEETSSHEET 2 WITNESSES INVENTOR 7 7 a%7zm murmurs HE NORRIS PETERS COPHOTO-LITHO WASHINGTON. D c.

. 1 nrrnn STATES PATENT OFFICE.

FRANK F. SLOCOMEB, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO F. F.SLOCOMB 86 00., INCORPORATED, A CORPORATION OF DELAWARE.

LEATHER-STAKING- MACHINE.

Specification of Letters Patent.

Mai. 99

Original application filed November 6, 1911, Serial No. 658,646. Dividedand this application filed June 26, 1914. Serial No. 847,398.

To all whom it may concern:

Be it lmown that-I, FRANK F. SLoooMB, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Leather-Staking Machine, of which thefollowing is a specification.

My present invention consists of a novel construction of a leatherstaking machine wherein the rollers which coact with the cams on theconnecting rod are mounted in a novel manner in order that said rollerswill at all times cooperate with the operative surface of the cam.

It further consists of a novel construction of a leather staking machinewherein novel means are provided for limiting the upward movement of thejaws in order to prevent injury to the operator.

It further consists of othernovel features of construction, all as willbe hereinafter fully set forth. 7

This application is a division of'an application for Letters Patent forleather staking machine, Serial No. 658,646, filed by me on November 6,1911.

For the purpose of illustrating my invention, I have shown in theaccompanying drawings, one form thereof which is at present preferred byme, since the same has been found in practice to give satisfactory andreliable results, although it is to be understood that the variousinstrumentali ties of which my invention consists can be variouslyarranged and organized and that my invention is not limited to theprecise arrangement and organization of these 1nstrumentalities asherein shown and described.

Figure 1 represents a sectional elevation of a leather staking machineembodying my invention, a portion of the same being broken away. Fig. 2represents a front elevation of a portion of Fig. 1. Fig. 8 represents asectional elevation of another embodiment of my invention. Fig. 4represents a side elevation of a portion of Fig. 1, the roller and itsadjuncts being omitted. Fig. 5 represents a sectional elevation of Fig.4.

2 designates a connecting rod, a portion of the same being broken away,it being of course understood that said connecting rod may be actuatedor reciprocated by means of a crank or other device (not shown). 3designates a pin or pivot common to said connecting rod and the plates4, the general contour of said plates being understood by reference toFig. 1, said plates when in position forming with their adjuncts, across head 5 which reciprocates in suitable slides, and a detaileddescription of the latter is unnecessary since the same is old in theart.

Pivoted at 6 to the plates 4 is an upper jaw 7 and pivoted at 8 to theplates 4' is the journal 15 which is pivoted with respect thereto bymeans of bolts and nuts 16, or equivalent fastening devices.

17 designates a roller carried by the forked end of the journal 15 andsecured therein by means of a bearing pin 18, said roller cooperatingwith the cam 19 on the connecting rod 2, as Will be apparent byreference to Fig. 1.

2O designates rods which are mounted on the pivot pin 3 and extendthrough a cross bar 31, carried by the bracket 10, and at their upperend they are provided with a plurality of nuts 22'having threadedengagement therewith and one of which serves as a lock nut.

23 is a washer between which and the cross bar 21 is interposed a spring24, it being understood by reference to Fig. 5 that two of these rods 20and their adjuncts are upward movement of the forward end of nderstoodby reference toFigs. 1, 4 and5.

downward movement of the bracket 10, it is desirable in some cases toprovide a stop therefor, and in Fig. 3, I have shown one type ofaconstruction which 'will accomplish this result. The rod 20 is providedwitha shoulder or. a top 25 integral therewith or adjustable thereon, sothat when the upper jaw 7 rocks on its pivot 6 the downward movement ofthe bracket lO'willbelimited; This limiting of the downward movementofthe bracket 10, and thereby the th'e'upper jaw? which carries therollers may also be obtained by providing astrap 26 which passes overthejaw 7 on the opposite side of thevpivotalpin 6 thereof, and is securedto the plates 4 of the :crosshead 5 by means of fastening devices 27, aswill be best The forward ends of the jaws carry staking rollers 63 and64, and blades, 65 and 66, between which the skin is placed and operatedupon. j K

57 is a spring suitably secured to the housing and havingone'end bearingagainst the lower. jaw 9, whereby the roller 58 will en-, gage withthecam 59v on the connecting rod 2. The roller 58 ismounted in asimilar.

7 manner'to the roller 17, seen in the upper portion of Fig. 1, and adetailedv descrip tion of such .mountingis therefore unnec essary. Y

64 designates the front roller which is ad- 7 justably mounted withrespect tothe upper forward part of the machine V their extreme forwardposition and held between the. body of the I .operatorand the breastroller 62, and the "rollers 63 and 64:, and the blades 65 and 66 arecaused to move rearwardly through the medium of the connecting rod 2,andsince the hide is held stationary by the operator,

it will be apparent that the proper treat ment will be imparted theretoduring the rearward movement of the rollers 68 anol 64, and theblades 65and 66, the operator or attendant shifting the hide or skin until everyportion'of the same-has been properly treated or staked. I c I Specialattention is directed to certain of the novel features of my presentinvention. In devices of this character asfheretofore tconstructed,considerabledifiiculty has arisen bearings in the positionappear as sacrificing any of its advantages.

owing to the wear of the rollers 17 and 58 with respect to the cams 19and 59, and since these-rollers are ordinarily mounted in sta- 'tionarybearings, the proper provision has not been made for causing the rollersto properly? cooperate with the cam.- Inmy presentdevice it will be seenthat the roller 17 is pivotally carried by the threaded stem ll-so thatthe same may oscillate and accomm'odate itself to the operative faceof-the cam-l9, so that the roller 17 willat-a ll times engage theoperative; face of the cam-a l9 insteadof only a portion thereof.

In devices of this character as heretofore constructed, there-is a;likelihood of. the -up-' per jaw bounding upwardly, andsince theoperator is bending thereover. in orderto properly manipulate the hide61, itsomey times happens that the attachment secured to the upper j aw7 will strilre the operator, 1

andin order to positively,preventtthis, I;

provide means for limiting the upward movement of the forward end ofrthe jaw7 which maybe accomplishedbyplacinga stop on the rods20, asseenzin Fig.;3,;or

another manner in which this can be advantageously accomplished is byprovidingthe.

strap 26 which will limitthei upward move\ ment of the forward apparent.

end of the jaw, 7 as; is

It will now be apparent thatI have de.

vised a novel and useful constructionofa leather staking machine whichembodiesthe.

features of advantageenumeratedias desirable in the statement of theinvention and the above description, and while-I-have,.in

the present instance, shown. and described a preferred embodimentthereof which has been found in practice to give satisfactory andreliable results, it is to be understood that the same is susceptible ofmodification in various, particulars without departing from the spiritor scope of the. invention or Having thus described my invention, what Iclaim as new and desire to secure by Letters Patent, is

1. In a leather staking machine, an upper j aw, means for reciprocatingand rocking-the 1 same, and means lndependentlofsaidrock-c,

,115 upward rocking movement of the-forward:

ing and reciprocating means for limitinggthe end of the upper jaw.

2. In a leather staking machine, an upper jaw, means for reciprocatmgandrocking the same, and a fixed stopseparatefrom. said means limitingthefupward. rocking movement of theforward endof the upper aw.

3. In a leather staking machine,- upper and lower jaws, journal-supportspivoted to laterally oscillate upon the same, rollersjournaled in suchsupports, cams bearing againstsaid rollers to openand close said jaws,z

and means for rocki fig and reciprocating beermg against said rollers toactuate said sai -fl gems. 1 th k h ]aWs, and means fer rocking saidcams.

n a ea er sta ing mac ine upper m and lower jaws, brackets carriedthereby, FRANK SLOGOMB' 5 threaded stems carried by said brackets,Witnesses:

rollers pivotally carried by said stems to E. HAYWARD FAIRBANKS, havelaterally oscillatory movement, cams C. D. VOVAY.

Gopiel c! this patent may be obtained for five cents each, by addressingthe commissioner of Patents,

Washington, D. 0.

